.indexBgBtn{
    background: url('../../Images/Index/bgBtn.png') no-repeat;
    background-size: 100% 100%;
    padding:0.3rem 0.6rem;
    text-align:center;
    font-size: 15px;
    color:#fff;
}
.overHid{
    overflow: hidden;
}
.maskDesc{
    position: absolute;
    bottom:5px;
    background: rgba(0,0,0,0.4);
    font-size: 14px;
    color:#fff;
    height:20px;
    line-height:20px;
    width:100%;
    text-align: center;
}